![]() It will then expand, and shatter the glass bulb, removing the obstacle and causing water to spray from the sprinkler. In a fire, the liquid in the bulb will become hot. This bulb normally blocks the flow of water. Every sprinkler has a small glass bulb with a liquid in it. This drop in pressure will trigger the fire pumps to turn on and start pumping water at a tremendous flowrate.Ī sprinkler is a nozzle attached to a network of pipes, and installed just below the ceiling of a room. As soon as the fire fighter opens the hydrant, water will gush out, and sensors will detect a drop in pressure in the system. ![]() The quantity and speed of the water is so great that it can knock over the firefighter holding the hose if he is not standing in the correct way. a large network of pipes ending in either hydrants or sprinklers ( nearly all buildings require both of these systems)Ī fire hydrant is a vertical steel pipe with an outlet, close to which two fire hoses are stored (A fire hydrant is called a standpipe in America). During a fire, firefighters will go to the outlet, break open the hoses, attach one to the outlet, and manually open it so that water rushes out of the nozzle of the hose.a large store of water in tanks, either underground or on top of the building, called fire storage tanks.A fire fighting system is probably the most important of the building services, as its aim is to protect human life and property, strictly in that order.
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